[Bug target/53633] __attribute__((naked)) should disable -Wreturn-type

["sandra at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53633

--- Comment #3 from sandra at gcc dot gnu.org 2012-07-25 18:08:11 UTC ---
Author: sandra
Date: Wed Jul 25 18:08:06 2012
New Revision: 189860

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189860
Log:
2012-07-25  Sandra Loosemore  <sandra@codesourcery.com>
        Paul Brook  <paul@codesourcery.com>

    PR target/53633

    gcc/
    * target.def (warn_func_return): New hook.
    * doc/tm.texi.in (TARGET_WARN_FUNC_RETURN): New hook.
    * doc/tm.texi: Regenerate.
    * doc/sourcebuild.texi (Effective-Target Keywords): Document
    naked_functions.
    * ipa-pure-const.c (warn_function_noreturn): Check
    targetm.warn_func_return.
    * tree-cfg.c (execute_warn_function_return): Likewise.
    * config/spu/spu.c (spu_warn_func_return): New.
    (TARGET_WARN_FUNC_RETURN): Define.
    * config/rx/rx.c (rx_warn_func_return): New.
    (TARGET_WARN_FUNC_RETURN): Define.
    * config/avr/avr.c (avr_warn_func_return): New.
    (TARGET_WARN_FUNC_RETURN): Define.
    * config/arm/arm.c (arm_warn_func_return): New.
    (TARGET_WARN_FUNC_RETURN): Define.
    * config/mcore/mcore.c (mcore_warn_func_return): New.
    (TARGET_WARN_FUNC_RETURN): Define.
    (saved_warn_return_type, saved_warn_return_type_count): Remove.
    (mcore_reorg, mcore_handle_naked_attribute): Remove warn_return hack.

    gcc/cp/
    * decl.c (finish_function): Check targetm.warn_func_return.

    gcc/testsuite/
    * lib/target-suports.exp (check_effective_target_naked_functions):
    New.
    * c-c++-common/pr53633.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/pr53633.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/config/avr/avr.c
    trunk/gcc/config/mcore/mcore.c
    trunk/gcc/config/rx/rx.c
    trunk/gcc/config/spu/spu.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/doc/sourcebuild.texi
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in
    trunk/gcc/ipa-pure-const.c
    trunk/gcc/target.def
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/lib/target-supports.exp
    trunk/gcc/tree-cfg.c